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Prostomium (sometimes also called acron) is the first body segment in annelids worms. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth. It sometimes bears antennae and eyes. By feeding, it often functions like a kind of overlip. The shape and composition of prostomium are important for annelid systematics.
http://en.wikipedia.org/wiki/Prostomium
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How is the prostomium different from the last segment?
The prostomium is the first segment of an annelid's body, located at the anterior end, and serves as a sensory structure, often housing sensory organs such as eyes and antennae. In contrast, the last segment, or pygidium, is the terminal segment of the body, primarily involved in the organism's excretion and reproduction. While the prostomium is not considered a true segment in terms of segmentation, the last segment is fully developed and contributes to the overall structure and function of the annelid. Thus, they differ in both position and function within the body plan.
What is the prostomium?
The prostomium is the first body segment in an earthworm which is part of a group of worms called segmented worms or annelids. The prostomium does not include the worm's mouth. -Anonymous
What actors and actresses appeared in Prostomium - 2010?
The cast of Prostomium - 2010 includes: Luna Peters Killian Schlueter Nina Siebertz Katherina Wolter
What is the purpose of the prostomium?
The prostomium is a structure found in some invertebrates, such as annelid worms. It serves as a cover for the mouth and houses sensory organs like tentacles or palps that help in detecting food and navigating the environment. Additionally, the prostomium can aid in burrowing or feeding activities.
What is the function of esophagus in an earthworm?
The esophagus of an earthworm is part of the earthworm's digestive tract, between the pharynx and the crop, and it basically just moves the earthworm's food from the pharynx to the crop. It also helps to keep the food from backing up (making the worm barf/throw up).
What is modified as a distinct head in some polychaetes?
Prostomium
What is the boring organ of earthworm?
Prostomium
What structure keeps things from getting into an earthworms mouth?
The prostomium.
The number of segments between prostomiun and clitellum?
There are about 30 segments between the prostomium and clitellum of an earthworm. actually this question asked as differently as "How many segments are between the prostomium and clitellum of an earthworm?" see answer for this question.
What is the Different between the prostomium and peristomium in polychaetes?
Prostomium is the frontmost part of the earthworm. This is not called a true segment as it doesn't contain typical organs of an annelida. Peristomium is from where the true segment of the earthworm body starts.
What is the prostomium and where is it found on an earthworm?
The prostomium is the fleshy lobe located at the anterior end of an earthworm. It covers the mouth and is involved in sensory perception and helping the earthworm navigate its environment.
What are earthworms lip called?
The lip-like sensory organ located above the mouth is known as the prostomium.
